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suite('diagnose') {
    def items = sql 'show proc "/diagnose/cluster_balance"'
    assertTrue(items.size() > 0)
    for (def item : items) {
        def status = item[1]
        // (TODO) assert status != 'ERROR'
        assertTrue(status == 'OK' || status == 'ERROR' || status == 'WARNING', 'diagnose: ' + item)
    }
}
